Mr. Hankeys Peak Prostate help

The peak prostate is supposed to be the new be all END all for prostate play. The majority say that medium size in 40% density is the way to go. When I placed my order a vac-u-lock hole was not an option. I assume it's due to the 40% softness?

Where I need help is there such a thing as a strap-on harness that is attached to a suction cup? A majority of my play is in the shower and I need it to stick to tile.
Thanks